Capacitive Coupled Dipole Antenna for 5G Vehicle Dashboards
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current antenna devices for vehicles are not capable of efficiently communicating with state-of-the-art broadband communication networks, such as 5G, and have size constraints that make it difficult to be installed in vehicle dashboards without compromising performance.
Innovation Solution
A compact antenna device with a dipole antenna electrical circuit that includes a plate-shaped element for capacitive coupling between conductive portions, optimizing communication bands from 1.7GHz to 6GHz, allowing for efficient communication with 5G networks while maintaining small dimensions suitable for dashboard installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna device uses traditional grounded element design, then it can be manufactured with simple structure, but it cannot efficiently communicate with 5G networks
Solution Approach 1:
The patent changes the electrical parameters of the antenna by introducing a capacitive coupling element that modifies the impedance characteristics and resonant frequency. This allows the antenna to operate efficiently in 5G frequency bands (1.7GHz to 6GHz) while maintaining a compact physical structure suitable for vehicle dashboard installation.
Solution Approach 2:
The patent introduces a capacitive coupling element as an intermediary between the fed element and the grounded element. This intermediary component enables efficient electromagnetic coupling and impedance matching, allowing the antenna to communicate effectively with 5G networks without requiring a complex traditional grounded structure.
2Volume of moving object
If the antenna device is made compact for dashboard installation, then it saves space, but it compromises communication performance
Solution Approach 1:
The patent transitions from a traditional planar antenna layout to a three-dimensional configuration with the capacitive coupling element positioned vertically between the fed and grounded elements. This dimensional change allows the antenna to achieve compact footprint while maintaining effective electromagnetic coupling and resonant characteristics for 5G communication.
Solution Approach 2:
The patent modifies the electrical parameters through the capacitive coupling element, which enables the antenna to maintain resonant frequency and impedance matching within the 1.7GHz to 6GHz range despite the reduced physical dimensions. This allows compact dashboard installation without sacrificing 5G communication performance.
3Adaptability or versatility
If the antenna uses capacitively coupled fed and grounded elements, then it achieves broadband communication capability, but it increases manufacturing complexity
Solution Approach 1:
The patent combines the fed element, capacitive coupling element, and grounded element into an integrated antenna assembly. This merging of components into a single compact unit achieves broadband communication capability across 5G frequency bands while simplifying the manufacturing process and reducing the number of separate parts that need to be assembled.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The antenna device achieves reduced return loss across critical frequency bands, ensuring effective communication with 5G networks and maintaining compactness, thus addressing the need for efficient and space-constrained vehicle installations.
Implementation Method 1
a plate-shaped element for capacitive coupling between conductive portions
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A 5G antenna device (1) comprising a flat, plate-shaped supporting base (5) in an electrically insulating material, a first terminal (6a) for providing an antenna signal, a second terminal (6b) set at a pre-established reference potential, and a dipole antenna electrical circuit (7) comprising a first portion (10) positioned on the supporting base (5) and having a polygonal shape, a second portion (11) positioned on the supporting base (5) and comprises a first branch (11a) having an elongated shape extending immediately alongside a first side (10a) of the first portion (10). The dipole antenna device (7) further comprises a plate-shaped element (12) made of electrically conductive material that lies on a plane transverse to the supporting base (5) and is electrically connected to the first branch (11a) of the second portion (11). The plate-shaped element (12) is adjacent to the first side (10a) of the first portion (10) and forms a capacitive antenna element therewith.